1j5d: Difference between revisions

Revision as of 14:19, 21 February 2008

SOLUTION STRUCTURE OF OXIDIZED PARAMAGNETIC CU(II) PLASTOCYANIN FROM SYNECHOCYSTIS PCC6803-MINIMIZED AVERAGE STRUCTURE

OverviewOverview

The NMR solution structure of oxidized plastocyanin from the cyanobacterium Synechocystis PCC6803 is here reported. The protein contains paramagnetic copper(II), whose electronic relaxation times are quite unfavorable for NMR solution studies. The structure has been solved on the basis of 1041 meaningful NOESY cross-peaks, 18 1D NOEs, 26 T(1) values, 96 dihedral angle constraints, and 18 H-bonds. The detection of broad hyperfine-shifted signals and their full assignment allowed the identification of the copper(II) ligands and the determination of the Cu-S-C-H dihedral angle for the coordinated cysteine. The global root-mean-square deviation from the mean structure for the solution structure family is 0.72 +/- 0.14 and 1.16 +/- 0.17 A for backbone and heavy atoms, respectively. The structure is overall quite satisfactory and represents a breakthrough, in that it includes paramagnetic copper proteins among the metalloproteins for which solution structures can be afforded. The comparison with the available X-ray structure of a triple mutant is also performed.

About this StructureAbout this Structure

1J5D is a Single protein structure of sequence from Synechocystis sp. with as ligand. This structure supersedes the now removed PDB entry 1I0Y. Full crystallographic information is available from OCA.

ReferenceReference

The first solution structure of a paramagnetic copper(II) protein: the case of oxidized plastocyanin from the cyanobacterium Synechocystis PCC6803., Bertini I, Ciurli S, Dikiy A, Fernandez CO, Luchinat C, Safarov N, Shumilin S, Vila AJ, J Am Chem Soc. 2001 Mar 14;123(10):2405-13. PMID:11456890

Page seeded by OCA on Thu Feb 21 13:19:04 2008

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA

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-[[Image:1j5d.gif|left|200px]]<br /><applet load="1j5d" size="450" color="white" frame="true" align="right" spinBox="true"
+[[Image:1j5d.gif|left|200px]]<br /><applet load="1j5d" size="350" color="white" frame="true" align="right" spinBox="true"
 caption="1j5d" />
 '''SOLUTION STRUCTURE OF OXIDIZED PARAMAGNETIC CU(II) PLASTOCYANIN FROM SYNECHOCYSTIS PCC6803-MINIMIZED AVERAGE STRUCTURE'''<br />
 ==Overview==
-The NMR solution structure of oxidized plastocyanin from the, cyanobacterium Synechocystis PCC6803 is here reported. The protein, contains paramagnetic copper(II), whose electronic relaxation times are, quite unfavorable for NMR solution studies. The structure has been solved, on the basis of 1041 meaningful NOESY cross-peaks, 18 1D NOEs, 26 T(1), values, 96 dihedral angle constraints, and 18 H-bonds. The detection of, broad hyperfine-shifted signals and their full assignment allowed the, identification of the copper(II) ligands and the determination of the, Cu-S-C-H dihedral angle for the coordinated cysteine. The global, root-mean-square deviation from the mean structure for the solution, structure family is 0.72 +/- 0.14 and 1.16 +/- 0.17 A for backbone and, heavy atoms, respectively. The structure is overall quite satisfactory and, represents a breakthrough, in that it includes paramagnetic copper, proteins among the metalloproteins for which solution structures can be, afforded. The comparison with the available X-ray structure of a triple, mutant is also performed.
+The NMR solution structure of oxidized plastocyanin from the cyanobacterium Synechocystis PCC6803 is here reported. The protein contains paramagnetic copper(II), whose electronic relaxation times are quite unfavorable for NMR solution studies. The structure has been solved on the basis of 1041 meaningful NOESY cross-peaks, 18 1D NOEs, 26 T(1) values, 96 dihedral angle constraints, and 18 H-bonds. The detection of broad hyperfine-shifted signals and their full assignment allowed the identification of the copper(II) ligands and the determination of the Cu-S-C-H dihedral angle for the coordinated cysteine. The global root-mean-square deviation from the mean structure for the solution structure family is 0.72 +/- 0.14 and 1.16 +/- 0.17 A for backbone and heavy atoms, respectively. The structure is overall quite satisfactory and represents a breakthrough, in that it includes paramagnetic copper proteins among the metalloproteins for which solution structures can be afforded. The comparison with the available X-ray structure of a triple mutant is also performed.
 ==About this Structure==
-J5D is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Synechocystis_sp. Synechocystis sp.] with CU as [http://en.wikipedia.org/wiki/ligand ligand]. This structure superseeds the now removed PDB entry 1I0Y. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1J5D OCA].
+J5D is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Synechocystis_sp. Synechocystis sp.] with <scene name='pdbligand=CU:'>CU</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. This structure supersedes the now removed PDB entry 1I0Y. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1J5D OCA].
 ==Reference==
@@ Line 16: / Line 16: @@
 [[Category: Ciurli, S.]]
 [[Category: Dikiy, A.]]
-[[Category: Fernandez, C.O.]]
+[[Category: Fernandez, C O.]]
 [[Category: Luchinat, C.]]
 [[Category: Safarov, N.]]
 [[Category: Shumilin, S.]]
-[[Category: Vila, A.J.]]
+[[Category: Vila, A J.]]
 [[Category: CU]]
 [[Category: copper protein beta barrel electron transfer]]
-''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 17:57:00 2007''
+''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 13:19:04 2008''